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Contents
- The climate of Wauwatosa
- The best time to visit Wauwatosa
- The worst time to visit Wauwatosa
- Spring weather in Wauwatosa
- Summer weather in Wauwatosa
- Autumn weather in Wauwatosa
- Winter weather in Wauwatosa
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Wauwatosa
Sitting majestically in Wisconsin, USA, the city of Wauwatosa experiences a temperate weather identified by the Köppen climate classification as a humid continental climate (Dfb). There is no dry season in this region, with warm summers followed by long, cold winters.
Throughout the year, the weather parameters show extensive variations, causing a notable shift in seasonal patterns. Temperature fluctuations remain prominent with the highest averages of 77.7°F (25.4°C) in July and the lowest reaching 15.8°F (-9°C) in January. Accompanying humidity levels oscillate from a minimum of 75% in October to a maximum of 85% in January, indicative of a fairly moist climate throughout the entire year.
Rainfall distribution stays uniform, with each month receiving a fortuitous spell of showers. The month of July tops the list with an average rainfall of 0.75" (19mm). Interestingly, January and February are the driest months, receiving approximately 0.31" (8mm) of rain each.
Additional factors shaping the climate are cloud cover percentages, wind patterns, and daylight hours. An observable pattern is that cloud cover percentage is the least during summer months (around 28%), consequently leading to more sunlight hours. Wauwatosa gets the most sun during July with approximately 10.4 hours per day. Wind speeds fluctuate between 7.1mph (11.4km/h) during the calmest month July to 11.4mph (18.3km/h) during the windiest months January and December.
Throughout the year, the weather parameters show extensive variations, causing a notable shift in seasonal patterns. Temperature fluctuations remain prominent with the highest averages of 77.7°F (25.4°C) in July and the lowest reaching 15.8°F (-9°C) in January. Accompanying humidity levels oscillate from a minimum of 75% in October to a maximum of 85% in January, indicative of a fairly moist climate throughout the entire year.
Rainfall distribution stays uniform, with each month receiving a fortuitous spell of showers. The month of July tops the list with an average rainfall of 0.75" (19mm). Interestingly, January and February are the driest months, receiving approximately 0.31" (8mm) of rain each.
Additional factors shaping the climate are cloud cover percentages, wind patterns, and daylight hours. An observable pattern is that cloud cover percentage is the least during summer months (around 28%), consequently leading to more sunlight hours. Wauwatosa gets the most sun during July with approximately 10.4 hours per day. Wind speeds fluctuate between 7.1mph (11.4km/h) during the calmest month July to 11.4mph (18.3km/h) during the windiest months January and December.
The best time to visit Wauwatosa
To relish the most amiable weather, tourists should mark their calendars for the period from May to September. During this window, temperatures soar from 61.7°F (16.5°C) to 77.7°F (25.4°C), perfectly conducive for outdoor exploration. These months witness lower cloud cover percentages and longer sunlight hours, promising clear skies and a radiant ambiance. The fairly low wind speed averaging at 8.1mph (13km/h) during these months adds comfort to sightseeing activities.
The worst time to visit Wauwatosa
If abhorrently cold weather and reduced visibility are not allies, steer clear of Wauwatosa during the harsh winter months of January and February. With temperature plunging to a dreadfully low average of 15°F (-9.4°C) to 18°F (-7.8°C) and an average snowfall of 1.1" (28mm) in January, these months prove to be the least welcoming for visitors.
Spring weather in Wauwatosa
Spring in Wauwatosa manifests itself as a swift transition from cold to warmer months. Temperatures progressively evolve, with March starting at an average low of 29.3°F (-1.5°C) and finishing at a more comfortable average high of 61.7°F (16.5°C) in May. Spring also marks the beginning of the rainy season with the highest rainfall received in May at 0.71" (18mm).
Summer weather in Wauwatosa
Marked by pleasant warmth and bright, sunlit days, Wauwatosa's summer months, spanning from June to August, bring average temperatures ranging from 71.2°F (21.8°C) to 77.7°F (25.4°C). Interestingly, the region also receives minimal rainfall during this period. Reaching its peak in July, daylight hours provide the maximum of 15 hours of brightness, making it the well-lit time of the year.
Autumn weather in Wauwatosa
Autumn in the city witnesses a subtle plunge in temperature, beginning from an average high of 70.5°F (21.4°C) in September and plummeting to 43.7°F (6.5°C) by November. It records a moderate downfall amount of rainfall from September to November, with October receiving the highest at 0.63" (16mm). Wind speeds increment slightly, averaging at 10mph (16.1km/h) during this period.
Winter weather in Wauwatosa
With a crisp cold in the air, winter arrives in Wauwatosa in December and lingers until February. Sub-zero temperatures, reaching down to 15.8°F (-9°C) in January, alongside an influx of hefty snowfall of precipitation is accumulated. Throughout the year, in Wauwatosa, Wisconsin, there are 75.6 rainfall days, and 5.83" (148mm) of precipitation is accumulated. January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 6.6 days and typically aggregates up to 1.1" (28mm) of snow. In Wauwatosa, the average length of the day in January is 9h and 26min.
On the first day of January in Wauwatosa, sunrise is at 7:23 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:02 pm CST. January has the least sunshine of the year, with an average of 3.5h of sunshine. January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
On the first day of January in Wauwatosa, sunrise is at 7:23 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:02 pm CST. January has the least sunshine of the year, with an average of 3.5h of sunshine. January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Weather in February
February continues with the winter chills and marks the transition period between the coldest part of the year and the onset of spring. Sunshine hours begin to increase slightly compared to January, giving the city of Wauwatosa a brighter feel despite continuing cold temperatures. Weather in February »
Weather in March
March in Wauwatosa welcomes the early stages of spring, with warming temperatures and longer daylight hours. A gradual decrease in cloud cover continues from February, allowing more sunlight to soak the city. The rate of snowfall takes a substantial dive compared to the winter months, with only 0.28" (7mm) typically recorded in March. Weather in March »
Weather in April
April typically ushers in a dramatic transformation in Wauwatosa's weather patterns compared to March, characterized by significant increases in temperature and longer days. Rainfall begins to be more frequent, aiding the blooming of spring flowers and green landscapes typical of this time. Weather in April »
Weather in May
May in Wauwatosa brings more consistent mild temperatures and plenty of daylight hours, heralding the start of the city's favorite season - summer. The increment in temperature from April to May is evident as winter clothing gets packed away. Weather in May »
Weather in June
June ushers in the peak of the summer season in Wauwatosa, Wisconsin with sun-filled days and significantly warmer temperatures. The city witnesses its highest UV index of 6, making sun protection necessary for those heading outdoors. Weather in June »
Weather in July
July is the warmest month in Wauwatosa with average high temperatures soaring to 77.7°F (25.4°C). This month's balmy weather is complimented by long hours of daylight, inviting residents to engage in various outdoor activities. The onset of August, though slight, brings about some changes in weather patterns, including a small dip in temperature averages. Weather in July »
Weather in August
August is a continuation of summer, but a slight dip in temperature heralds the coming autumn season. As August progresses, daylight hours gradually reduce, heralding the end of summer and the onset of fall. Despite the consistent high temperature, the city records a negligible amount of snowfall in August. Weather in August »
Weather in September
In September, there is a noticeable change in the weather in Wauwatosa, as the city begins to embark on the journey into the cool fall season. The reduction in daylight, coupled with a decrease in temperature, marks a contrast to the long summer days. Weather in September »
Weather in October
October welcomes the heart of fall in Wauwatosa, Wisconsin as temperatures continue to fall, and daylight hours wane. The rich hues of fall leaves are a dominant sight, making the city especially picturesque during this time. The increasingly chilly temperatures continue from September, dropping even further as the city prepares for the forthcoming winter. Weather in October »
Weather in November
November marks the transition from fall to winter in Wauwatosa, as the city is encapsulated by cooler temperatures and shortened daylight hours. The shift in weather conditions is significant, with the entire cityscape taking on a more wintry appearance. Weather in November »
Weather in December
In December, Wauwatosa, Wisconsin transitions into a full-blown winter wonderland, with lower temperatures and snowfall becoming the norm. Compared to November, daylight hours reduce even further, making way for longer evenings that carry a quintessential winter charm. Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Wauwatosa?
January, noted for its average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 15.8°F (-9°C), is considered the coldest month.
What is the most humid month in Wauwatosa?
With an average relative humidity of 85%, January is the most humid month.
How many days does it rain in Wauwatosa?
In Wauwatosa, during the entire year, the rain falls for 75.6 days and collects up to 5.83" (148mm) of precipitation.
When does it snow in Wauwatosa?
Months with snowfall are January through April, October through December.
What is the snowiest month in Wauwatosa?
January is the month with the most snowfall in Wauwatosa, Wisconsin. Snow falls for 6.6 days and accumulates 1.1" (28mm) of snow.
How much does it snow in Wauwatosa?
Throughout the year, in Wauwatosa, Wisconsin, there are 27.6 snowfall days, and 3.43" (87mm) of snow is accumulated.
What is the month with the least sunshine in Wauwatosa?
January has the least sunshine of the year in Wauwatosa, Wisconsin, with an average of 3.5h of sunshine.
What is the month with the lowest UV index in Wauwatosa?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the driest month in Wauwatosa?
The months with the least rainfall in Wauwatosa are February and December Rain falls for 1.8 days and accumulates 0.28" (7mm) of rain.
When is Daylight Saving Time (DST) in Wauwatosa?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow in Wauwatosa?
In Wauwatosa, Wisconsin, snow does not fall in May through September.
When are the longest days in Wauwatosa?
June has the longest days of the year in Wauwatosa, Wisconsin, with an average of 15h and 18min of daylight.
When is the highest UV index in Wauwatosa?
The months with the highest UV index in Wauwatosa are June and July, with an average maximum UV index of 6.
What part of the year is the hottest in Wauwatosa?
July, with an average high of 77.7°F (25.4°C) and a low of 64°F (17.8°C), signifies the warmest month of the year.
What is the wettest month in Wauwatosa?
The month with the most rainfall in Wauwatosa is July, when the rain falls for 9.5 days and typically aggregates up to 0.75" (19mm) of precipitation.
What are the months with the most sunshine in Wauwatosa?
July and August, with an average of 10.4h of sunshine, are months with the most sunshine.
What is the least humid month in Wauwatosa?
The least humid month is October, with an average relative humidity of 75%.
What is the month with the shortest days in Wauwatosa?
December has the shortest days of the year in Wauwatosa, with an average of 9h and 6min of daylight.
Average temperature
Wauwatosa, WI
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (26.1°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure
Wauwatosa, WI
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.08"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Wauwatosa, WI
- Average wind speed in January:
11.4mph - Average wind speed in February:
11.1mph - Average wind speed in March:
10.2mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.2mph - Average wind speed in September:
8.5mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.7mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity
Wauwatosa, WI
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Wauwatosa, WI
- Average rainfall in January:
0.31" - Average rainfall in February:
0.28" - Average rainfall in March:
0.31" - Average rainfall in April:
0.67" - Average rainfall in May:
0.71" - Average rainfall in June:
0.67"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.55" - Average rainfall in September:
0.35" - Average rainfall in October:
0.63" - Average rainfall in November:
0.31" - Average rainfall in December:
0.28"
The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are February and December (0.28").
Average rainfall days
Wauwatosa, WI
- Average rainfall days in January:
1.8 days - Average rainfall days in February:
1.8 days - Average rainfall days in March:
6.1 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
9.4 days - Average rainfall days in June:
9.9 days
- Average rainfall days in July:
9.5 days - Average rainfall days in August:
8.7 days - Average rainfall days in September:
6.4 days - Average rainfall days in October:
5.7 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (9.9 days).
The months with the least rainy days are January and February (1.8 days).
Average snowfall
Wauwatosa, WI
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Wauwatosa, WI
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.2 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Wauwatosa, WI
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Wauwatosa, WI
- Average sunshine days in January:
25.4 days - Average sunshine days in February:
21.8 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
18.6 days - Average sunshine days in May:
18.1 days - Average sunshine days in June:
17.3 days
- Average sunshine days in July:
18.5 days - Average sunshine days in August:
20.1 days - Average sunshine days in September:
21.8 days - Average sunshine days in October:
22.1 days - Average sunshine days in November:
23.6 days - Average sunshine days in December:
24.9 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (17.3 days).
Average UV index
Wauwatosa, WI
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Wauwatosa, WI
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Wauwatosa, WI
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wauwatosa, Wisconsin, USA
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